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Convert 0.22222222... (recurring) into a fraction

x=0.22222222...10x= 2.222222...10x-x=9x=2x=2/9=0.2222222...
x=2/9

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Work out the gradient and y-intercept of the straight line with points A(3,8) and B(-2,-7)

Y= mx + cFinding m : change in y/ change in x => (8--7)/(3--2) = 3Finding c : input a pair of coordinates => 8 = (3 x 3) + c .... c = -1y = 3x -1

Answered by Kim R. • Maths tutor

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What is the difference between unconditional and conditional probability?

Unconditional probability is a measure of the liklihood of a particular outcome relating to a series of independent events, where the outcome of one does not effect the outcome of another. For example, co...

Answered by Oliver H. • Maths tutor

9259 Views

If a cuboid of width and height-8m with a volume of 896m^3, work out the length of the cuboid and distance between two opposite points

Length=L 896= 8x8xL => L=896/64 => L=14
Distance between two opposite points = 3D TrigD=sqrt(8^2+8^2+14^2) =sqrt(324) =18

Answered by Declan C. • Maths tutor

2420 Views

20% of 14,000

For any percentage that is a factor of 10 you can always start off by dividing by 10.So for example, 20%, 30%, 40% of a value, you always start off by diving by 10.In this case we divide 14,000 by 10 = 14...

Answered by yasmin D. • Maths tutor

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